Dolgolaptev Vladimir Grigor'evich

Publications in Math-Net.Ru

1. The rate of convergence of Riesz means of a Fourier series in fundamental systems of functions of the Laplace operator
   
   Differ. Uravn., 22:10 (1986),  1824–1826
2. Strong summability of Riesz means
   
   Mat. Zametki, 40:3 (1986),  352–363
3. Absolute summability by Riesz means, formed with respect to a fundamental function system of the Laplace operator, of functions from a Nikol'skiǐ class
   
   Differ. Uravn., 20:9 (1984),  1577–1582
4. Absence of absolute summability of the spectral expansions of functions from Nikol'skii's class by Riesz means
   
   Mat. Zametki, 36:1 (1984),  65–71
5. Basicity of the root vectors of weakly perturbed operators
   
   Mat. Zametki, 34:6 (1983),  867–872